When data are collected using a quantitative,ratio variable,what is true about a frequency distribution that summarizes the data?
A)Upper and lower class limits must be calculated.
B)A pie chart can be used to summarize the data.
C)The number of classes is equal to the number of variable values.
D)The "5 to the k rule" can be applied.

Question

Quizplus · Accepted Answer

When data are collected using a quantitative, ratio variable, upper and lower class limits must be calculated to create a frequency distribution. This helps to identify the range and distribution of the data. Option B is incorrect as a pie chart is typically used to summarize qualitative data, not quantitative data. Option C is incorrect as the number of classes depends on the range of the data and the desired level of detail, not the number of variable values. Option D is incorrect as the "5 to the k rule" applies to creating histograms, not frequency distributions.

When Data Are Collected Using a Quantitative,ratio Variable,what Is True